Final answer:
The most common form of medical treatment for opioid addiction is medication-assisted treatment (MAT) using medications like methadone, buprenorphine, and naltrexone to reduce cravings and withdrawal symptoms.
Step-by-step explanation:
The most common form of medical treatment for opioid addiction is medication-assisted treatment (MAT). MAT involves the use of medications, such as methadone, buprenorphine, and naltrexone, to reduce cravings and withdrawal symptoms, while also addressing the underlying biochemical changes in the brain caused by opioid addiction. Methadone and buprenorphine are opioids themselves, but when used in proper doses under medical supervision, they can help individuals stabilize their lives and reduce the risk of overdose.